no menstrual cycle

Wendy

So <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> says I'm 22 days late and on cycle day 52, I'm experiencing cramping and bloated for about a week now and I feel like I'm going to get my period but I took a pregnancy test this morning from dollar tree and came back negative, what could it be?